﻿#region
using System;
using System.Collections.Generic;

#endregion

namespace VirtoCommerce.Web.Models.Helpers
{

    public class ExtensionMapper
    {
        #region Static Fields
        /// <summary>
        ///     The extension mappings
        /// </summary>
        private static readonly IDictionary<string, string> ExtensionMappings =
            new Dictionary<string, string>(StringComparer.InvariantCultureIgnoreCase)
            {
                #region Big freaking list of mime types
                // combination of values from Windows 7 Registry and 
                // from C:\Windows\System32\inetsrv\config\applicationHost.config
                // some added, including .7z and .dat
                { ".323", "text/h323" },
                { ".3g2", "video/3gpp2" },
                { ".3gp", "video/3gpp" },
                { ".3gp2", "video/3gpp2" },
                { ".3gpp", "video/3gpp" },
                {
                    ".7z",
                    "application/x-7z-compressed"
                },
                { ".aa", "audio/audible" },
                { ".AAC", "audio/aac" },
                {
                    ".aaf",
                    "application/octet-stream"
                },
                {
                    ".aax",
                    "audio/vnd.audible.aax"
                },
                { ".ac3", "audio/ac3" },
                {
                    ".aca",
                    "application/octet-stream"
                },
                {
                    ".accda",
                    "application/msaccess.addin"
                },
                {
                    ".accdb",
                    "application/msaccess"
                },
                {
                    ".accdc",
                    "application/msaccess.cab"
                },
                {
                    ".accde",
                    "application/msaccess"
                },
                {
                    ".accdr",
                    "application/msaccess.runtime"
                },
                {
                    ".accdt",
                    "application/msaccess"
                },
                {
                    ".accdw",
                    "application/msaccess.webapplication"
                },
                {
                    ".accft",
                    "application/msaccess.ftemplate"
                },
                {
                    ".acx",
                    "application/internet-property-stream"
                },
                { ".AddIn", "text/xml" },
                {
                    ".ade",
                    "application/msaccess"
                },
                {
                    ".adobebridge",
                    "application/x-bridge-url"
                },
                {
                    ".adp",
                    "application/msaccess"
                },
                {
                    ".ADT",
                    "audio/vnd.dlna.adts"
                },
                { ".ADTS", "audio/aac" },
                {
                    ".afm",
                    "application/octet-stream"
                },
                {
                    ".ai",
                    "application/postscript"
                },
                { ".aif", "audio/x-aiff" },
                { ".aifc", "audio/aiff" },
                { ".aiff", "audio/aiff" },
                {
                    ".air",
                    "application/vnd.adobe.air-application-installer-package+zip"
                },
                {
                    ".amc", "application/x-mpeg"
                },
                {
                    ".application",
                    "application/x-ms-application"
                },
                { ".art", "image/x-jg" },
                { ".asa", "application/xml" },
                { ".asax", "application/xml" },
                { ".ascx", "application/xml" },
                {
                    ".asd",
                    "application/octet-stream"
                },
                { ".asf", "video/x-ms-asf" },
                { ".ashx", "application/xml" },
                {
                    ".asi",
                    "application/octet-stream"
                },
                { ".asm", "text/plain" },
                { ".asmx", "application/xml" },
                { ".aspx", "application/xml" },
                { ".asr", "video/x-ms-asf" },
                { ".asx", "video/x-ms-asf" },
                {
                    ".atom",
                    "application/atom+xml"
                },
                { ".au", "audio/basic" },
                { ".avi", "video/x-msvideo" },
                {
                    ".axs",
                    "application/olescript"
                },
                { ".bas", "text/plain" },
                {
                    ".bcpio",
                    "application/x-bcpio"
                },
                {
                    ".bin",
                    "application/octet-stream"
                },
                { ".bmp", "image/bmp" },
                { ".c", "text/plain" },
                {
                    ".cab",
                    "application/octet-stream"
                },
                { ".caf", "audio/x-caf" },
                {
                    ".calx",
                    "application/vnd.ms-office.calx"
                },
                {
                    ".cat",
                    "application/vnd.ms-pki.seccat"
                },
                { ".cc", "text/plain" },
                { ".cd", "text/plain" },
                { ".cdda", "audio/aiff" },
                {
                    ".cdf", "application/x-cdf"
                },
                {
                    ".cer",
                    "application/x-x509-ca-cert"
                },
                {
                    ".chm",
                    "application/octet-stream"
                },
                {
                    ".class",
                    "application/x-java-applet"
                },
                {
                    ".clp",
                    "application/x-msclip"
                },
                { ".cmx", "image/x-cmx" },
                { ".cnf", "text/plain" },
                { ".cod", "image/cis-cod" },
                {
                    ".config", "application/xml"
                },
                {
                    ".contact",
                    "text/x-ms-contact"
                },
                {
                    ".coverage",
                    "application/xml"
                },
                {
                    ".cpio",
                    "application/x-cpio"
                },
                { ".cpp", "text/plain" },
                {
                    ".crd",
                    "application/x-mscardfile"
                },
                {
                    ".crl",
                    "application/pkix-crl"
                },
                {
                    ".crt",
                    "application/x-x509-ca-cert"
                },
                { ".cs", "text/plain" },
                { ".csdproj", "text/plain" },
                {
                    ".csh", "application/x-csh"
                },
                { ".csproj", "text/plain" },
                { ".css", "text/css" },
                { ".csv", "text/csv" },
                {
                    ".cur",
                    "application/octet-stream"
                },
                { ".cxx", "text/plain" },
                {
                    ".dat",
                    "application/octet-stream"
                },
                {
                    ".datasource",
                    "application/xml"
                },
                { ".dbproj", "text/plain" },
                {
                    ".dcr",
                    "application/x-director"
                },
                { ".def", "text/plain" },
                {
                    ".deploy",
                    "application/octet-stream"
                },
                {
                    ".der",
                    "application/x-x509-ca-cert"
                },
                { ".dgml", "application/xml" },
                { ".dib", "image/bmp" },
                { ".dif", "video/x-dv" },
                {
                    ".dir",
                    "application/x-director"
                },
                { ".disco", "text/xml" },
                {
                    ".dll",
                    "application/x-msdownload"
                },
                { ".dll.config", "text/xml" },
                { ".dlm", "text/dlm" },
                {
                    ".doc", "application/msword"
                },
                {
                    ".docm",
                    "application/vnd.ms-word.document.macroEnabled.12"
                },
                {
                    ".docx",
                    "application/vnd.openxmlformats-officedocument.wordprocessingml.document"
                },
                {
                    ".dot", "application/msword"
                },
                {
                    ".dotm",
                    "application/vnd.ms-word.template.macroEnabled.12"
                },
                {
                    ".dotx",
                    "application/vnd.openxmlformats-officedocument.wordprocessingml.template"
                },
                {
                    ".dsp",
                    "application/octet-stream"
                },
                { ".dsw", "text/plain" },
                { ".dtd", "text/xml" },
                { ".dtsConfig", "text/xml" },
                { ".dv", "video/x-dv" },
                {
                    ".dvi", "application/x-dvi"
                },
                { ".dwf", "drawing/x-dwf" },
                {
                    ".dwp",
                    "application/octet-stream"
                },
                {
                    ".dxr",
                    "application/x-director"
                },
                { ".eml", "message/rfc822" },
                {
                    ".emz",
                    "application/octet-stream"
                },
                {
                    ".eot",
                    "application/octet-stream"
                },
                {
                    ".eps",
                    "application/postscript"
                },
                { ".etl", "application/etl" },
                { ".etx", "text/x-setext" },
                {
                    ".evy", "application/envoy"
                },
                {
                    ".exe",
                    "application/octet-stream"
                },
                { ".exe.config", "text/xml" },
                {
                    ".fdf",
                    "application/vnd.fdf"
                },
                {
                    ".fif",
                    "application/fractals"
                },
                {
                    ".filters",
                    "Application/xml"
                },
                {
                    ".fla",
                    "application/octet-stream"
                },
                { ".flr", "x-world/x-vrml" },
                { ".flv", "video/x-flv" },
                {
                    ".fsscript",
                    "application/fsharp-script"
                },
                {
                    ".fsx",
                    "application/fsharp-script"
                },
                {
                    ".generictest",
                    "application/xml"
                },
                { ".gif", "image/gif" },
                {
                    ".group", "text/x-ms-group"
                },
                { ".gsm", "audio/x-gsm" },
                {
                    ".gtar",
                    "application/x-gtar"
                },
                {
                    ".gz", "application/x-gzip"
                },
                { ".h", "text/plain" },
                {
                    ".hdf", "application/x-hdf"
                },
                { ".hdml", "text/x-hdml" },
                {
                    ".hhc",
                    "application/x-oleobject"
                },
                {
                    ".hhk",
                    "application/octet-stream"
                },
                {
                    ".hhp",
                    "application/octet-stream"
                },
                {
                    ".hlp", "application/winhlp"
                },
                { ".hpp", "text/plain" },
                {
                    ".hqx",
                    "application/mac-binhex40"
                },
                { ".hta", "application/hta" },
                { ".htc", "text/x-component" },
                { ".htm", "text/html" },
                { ".html", "text/html" },
                { ".htt", "text/webviewhtml" },
                { ".hxa", "application/xml" },
                { ".hxc", "application/xml" },
                {
                    ".hxd",
                    "application/octet-stream"
                },
                { ".hxe", "application/xml" },
                { ".hxf", "application/xml" },
                {
                    ".hxh",
                    "application/octet-stream"
                },
                {
                    ".hxi",
                    "application/octet-stream"
                },
                { ".hxk", "application/xml" },
                {
                    ".hxq",
                    "application/octet-stream"
                },
                {
                    ".hxr",
                    "application/octet-stream"
                },
                {
                    ".hxs",
                    "application/octet-stream"
                },
                { ".hxt", "text/html" },
                { ".hxv", "application/xml" },
                {
                    ".hxw",
                    "application/octet-stream"
                },
                { ".hxx", "text/plain" },
                { ".i", "text/plain" },
                { ".ico", "image/x-icon" },
                {
                    ".ics",
                    "application/octet-stream"
                },
                { ".idl", "text/plain" },
                { ".ief", "image/ief" },
                {
                    ".iii",
                    "application/x-iphone"
                },
                { ".inc", "text/plain" },
                {
                    ".inf",
                    "application/octet-stream"
                },
                { ".inl", "text/plain" },
                {
                    ".ins",
                    "application/x-internet-signup"
                },
                {
                    ".ipa",
                    "application/x-itunes-ipa"
                },
                {
                    ".ipg",
                    "application/x-itunes-ipg"
                },
                { ".ipproj", "text/plain" },
                {
                    ".ipsw",
                    "application/x-itunes-ipsw"
                },
                { ".iqy", "text/x-ms-iqy" },
                {
                    ".isp",
                    "application/x-internet-signup"
                },
                {
                    ".ite",
                    "application/x-itunes-ite"
                },
                {
                    ".itlp",
                    "application/x-itunes-itlp"
                },
                {
                    ".itms",
                    "application/x-itunes-itms"
                },
                {
                    ".itpc",
                    "application/x-itunes-itpc"
                },
                { ".IVF", "video/x-ivf" },
                {
                    ".jar",
                    "application/java-archive"
                },
                {
                    ".java",
                    "application/octet-stream"
                },
                {
                    ".jck",
                    "application/liquidmotion"
                },
                {
                    ".jcz",
                    "application/liquidmotion"
                },
                { ".jfif", "image/pjpeg" },
                {
                    ".jnlp",
                    "application/x-java-jnlp-file"
                },
                {
                    ".jpb",
                    "application/octet-stream"
                },
                { ".jpe", "image/jpeg" },
                { ".jpeg", "image/jpeg" },
                { ".jpg", "image/jpeg" },
                {
                    ".js",
                    "application/x-javascript"
                },
                { ".jsx", "text/jscript" },
                { ".jsxbin", "text/plain" },
                {
                    ".latex",
                    "application/x-latex"
                },
                {
                    ".library-ms",
                    "application/windows-library+xml"
                },
                {
                    ".lit",
                    "application/x-ms-reader"
                },
                {
                    ".loadtest",
                    "application/xml"
                },
                {
                    ".lpk",
                    "application/octet-stream"
                },
                { ".lsf", "video/x-la-asf" },
                { ".lst", "text/plain" },
                { ".lsx", "video/x-la-asf" },
                {
                    ".lzh",
                    "application/octet-stream"
                },
                {
                    ".m13",
                    "application/x-msmediaview"
                },
                {
                    ".m14",
                    "application/x-msmediaview"
                },
                { ".m1v", "video/mpeg" },
                {
                    ".m2t",
                    "video/vnd.dlna.mpeg-tts"
                },
                {
                    ".m2ts",
                    "video/vnd.dlna.mpeg-tts"
                },
                { ".m2v", "video/mpeg" },
                { ".m3u", "audio/x-mpegurl" },
                { ".m3u8", "audio/x-mpegurl" },
                { ".m4a", "audio/m4a" },
                { ".m4b", "audio/m4b" },
                { ".m4p", "audio/m4p" },
                { ".m4r", "audio/x-m4r" },
                { ".m4v", "video/x-m4v" },
                { ".mac", "image/x-macpaint" },
                { ".mak", "text/plain" },
                {
                    ".man",
                    "application/x-troff-man"
                },
                {
                    ".manifest",
                    "application/x-ms-manifest"
                },
                { ".map", "text/plain" },
                {
                    ".master", "application/xml"
                },
                {
                    ".mda",
                    "application/msaccess"
                },
                {
                    ".mdb",
                    "application/x-msaccess"
                },
                {
                    ".mde",
                    "application/msaccess"
                },
                {
                    ".mdp",
                    "application/octet-stream"
                },
                {
                    ".me",
                    "application/x-troff-me"
                },
                {
                    ".mfp",
                    "application/x-shockwave-flash"
                },
                { ".mht", "message/rfc822" },
                { ".mhtml", "message/rfc822" },
                { ".mid", "audio/mid" },
                { ".midi", "audio/mid" },
                {
                    ".mix",
                    "application/octet-stream"
                },
                { ".mk", "text/plain" },
                {
                    ".mmf", "application/x-smaf"
                },
                { ".mno", "text/xml" },
                {
                    ".mny",
                    "application/x-msmoney"
                },
                { ".mod", "video/mpeg" },
                { ".mov", "video/quicktime" },
                {
                    ".movie",
                    "video/x-sgi-movie"
                },
                { ".mp2", "video/mpeg" },
                { ".mp2v", "video/mpeg" },
                { ".mp3", "audio/mpeg" },
                { ".mp4", "video/mp4" },
                { ".mp4v", "video/mp4" },
                { ".mpa", "video/mpeg" },
                { ".mpe", "video/mpeg" },
                { ".mpeg", "video/mpeg" },
                {
                    ".mpf",
                    "application/vnd.ms-mediapackage"
                },
                { ".mpg", "video/mpeg" },
                {
                    ".mpp",
                    "application/vnd.ms-project"
                },
                { ".mpv2", "video/mpeg" },
                { ".mqv", "video/quicktime" },
                {
                    ".ms",
                    "application/x-troff-ms"
                },
                {
                    ".msi",
                    "application/octet-stream"
                },
                {
                    ".mso",
                    "application/octet-stream"
                },
                {
                    ".mts",
                    "video/vnd.dlna.mpeg-tts"
                },
                { ".mtx", "application/xml" },
                {
                    ".mvb",
                    "application/x-msmediaview"
                },
                {
                    ".mvc",
                    "application/x-miva-compiled"
                },
                {
                    ".mxp", "application/x-mmxp"
                },
                {
                    ".nc",
                    "application/x-netcdf"
                },
                { ".nsc", "video/x-ms-asf" },
                { ".nws", "message/rfc822" },
                {
                    ".ocx",
                    "application/octet-stream"
                },
                { ".oda", "application/oda" },
                { ".odc", "text/x-ms-odc" },
                { ".odh", "text/plain" },
                { ".odl", "text/plain" },
                {
                    ".odp",
                    "application/vnd.oasis.opendocument.presentation"
                },
                {
                    ".ods",
                    "application/oleobject"
                },
                {
                    ".odt",
                    "application/vnd.oasis.opendocument.text"
                },
                {
                    ".one",
                    "application/onenote"
                },
                {
                    ".onea",
                    "application/onenote"
                },
                {
                    ".onepkg",
                    "application/onenote"
                },
                {
                    ".onetmp",
                    "application/onenote"
                },
                {
                    ".onetoc",
                    "application/onenote"
                },
                {
                    ".onetoc2",
                    "application/onenote"
                },
                {
                    ".orderedtest",
                    "application/xml"
                },
                {
                    ".osdx",
                    "application/opensearchdescription+xml"
                },
                {
                    ".p10", "application/pkcs10"
                },
                {
                    ".p12",
                    "application/x-pkcs12"
                },
                {
                    ".p7b",
                    "application/x-pkcs7-certificates"
                },
                {
                    ".p7c",
                    "application/pkcs7-mime"
                },
                {
                    ".p7m",
                    "application/pkcs7-mime"
                },
                {
                    ".p7r",
                    "application/x-pkcs7-certreqresp"
                },
                {
                    ".p7s",
                    "application/pkcs7-signature"
                },
                {
                    ".pbm",
                    "image/x-portable-bitmap"
                },
                {
                    ".pcast",
                    "application/x-podcast"
                },
                { ".pct", "image/pict" },
                {
                    ".pcx",
                    "application/octet-stream"
                },
                {
                    ".pcz",
                    "application/octet-stream"
                },
                { ".pdf", "application/pdf" },
                {
                    ".pfb",
                    "application/octet-stream"
                },
                {
                    ".pfm",
                    "application/octet-stream"
                },
                {
                    ".pfx",
                    "application/x-pkcs12"
                },
                {
                    ".pgm",
                    "image/x-portable-graymap"
                },
                { ".pic", "image/pict" },
                { ".pict", "image/pict" },
                { ".pkgdef", "text/plain" },
                { ".pkgundef", "text/plain" },
                {
                    ".pko",
                    "application/vnd.ms-pki.pko"
                },
                { ".pls", "audio/scpls" },
                {
                    ".pma",
                    "application/x-perfmon"
                },
                {
                    ".pmc",
                    "application/x-perfmon"
                },
                {
                    ".pml",
                    "application/x-perfmon"
                },
                {
                    ".pmr",
                    "application/x-perfmon"
                },
                {
                    ".pmw",
                    "application/x-perfmon"
                },
                { ".png", "image/png" },
                {
                    ".pnm",
                    "image/x-portable-anymap"
                },
                { ".pnt", "image/x-macpaint" },
                {
                    ".pntg", "image/x-macpaint"
                },
                { ".pnz", "image/png" },
                {
                    ".pot",
                    "application/vnd.ms-powerpoint"
                },
                {
                    ".potm",
                    "application/vnd.ms-powerpoint.template.macroEnabled.12"
                },
                {
                    ".potx",
                    "application/vnd.openxmlformats-officedocument.presentationml.template"
                },
                {
                    ".ppa",
                    "application/vnd.ms-powerpoint"
                },
                {
                    ".ppam",
                    "application/vnd.ms-powerpoint.addin.macroEnabled.12"
                },
                {
                    ".ppm",
                    "image/x-portable-pixmap"
                },
                {
                    ".pps",
                    "application/vnd.ms-powerpoint"
                },
                {
                    ".ppsm",
                    "application/vnd.ms-powerpoint.slideshow.macroEnabled.12"
                },
                {
                    ".ppsx",
                    "application/vnd.openxmlformats-officedocument.presentationml.slideshow"
                },
                {
                    ".ppt",
                    "application/vnd.ms-powerpoint"
                },
                {
                    ".pptm",
                    "application/vnd.ms-powerpoint.presentation.macroEnabled.12"
                },
                {
                    ".pptx",
                    "application/vnd.openxmlformats-officedocument.presentationml.presentation"
                },
                {
                    ".prf",
                    "application/pics-rules"
                },
                {
                    ".prm",
                    "application/octet-stream"
                },
                {
                    ".prx",
                    "application/octet-stream"
                },
                {
                    ".ps",
                    "application/postscript"
                },
                {
                    ".psc1",
                    "application/PowerShell"
                },
                {
                    ".psd",
                    "application/octet-stream"
                },
                {
                    ".psess", "application/xml"
                },
                {
                    ".psm",
                    "application/octet-stream"
                },
                {
                    ".psp",
                    "application/octet-stream"
                },
                {
                    ".pub",
                    "application/x-mspublisher"
                },
                {
                    ".pwz",
                    "application/vnd.ms-powerpoint"
                },
                {
                    ".qht",
                    "text/x-html-insertion"
                },
                {
                    ".qhtm",
                    "text/x-html-insertion"
                },
                { ".qt", "video/quicktime" },
                {
                    ".qti", "image/x-quicktime"
                },
                {
                    ".qtif", "image/x-quicktime"
                },
                {
                    ".qtl",
                    "application/x-quicktimeplayer"
                },
                {
                    ".qxd",
                    "application/octet-stream"
                },
                {
                    ".ra",
                    "audio/x-pn-realaudio"
                },
                {
                    ".ram",
                    "audio/x-pn-realaudio"
                },
                {
                    ".rar",
                    "application/octet-stream"
                },
                {
                    ".ras", "image/x-cmu-raster"
                },
                {
                    ".rat",
                    "application/rat-file"
                },
                { ".rc", "text/plain" },
                { ".rc2", "text/plain" },
                { ".rct", "text/plain" },
                { ".rdlc", "application/xml" },
                { ".resx", "application/xml" },
                {
                    ".rf",
                    "image/vnd.rn-realflash"
                },
                { ".rgb", "image/x-rgb" },
                { ".rgs", "text/plain" },
                {
                    ".rm",
                    "application/vnd.rn-realmedia"
                },
                { ".rmi", "audio/mid" },
                {
                    ".rmp",
                    "application/vnd.rn-rn_music_package"
                },
                {
                    ".roff",
                    "application/x-troff"
                },
                {
                    ".rpm",
                    "audio/x-pn-realaudio-plugin"
                },
                { ".rqy", "text/x-ms-rqy" },
                { ".rtf", "application/rtf" },
                { ".rtx", "text/richtext" },
                {
                    ".ruleset",
                    "application/xml"
                },
                { ".s", "text/plain" },
                {
                    ".safariextz",
                    "application/x-safari-safariextz"
                },
                {
                    ".scd",
                    "application/x-msschedule"
                },
                { ".sct", "text/scriptlet" },
                { ".sd2", "audio/x-sd2" },
                { ".sdp", "application/sdp" },
                {
                    ".sea",
                    "application/octet-stream"
                },
                {
                    ".searchConnector-ms",
                    "application/windows-search-connector+xml"
                },
                {
                    ".setpay",
                    "application/set-payment-initiation"
                },
                {
                    ".setreg",
                    "application/set-registration-initiation"
                },
                {
                    ".settings",
                    "application/xml"
                },
                {
                    ".sgimb",
                    "application/x-sgimb"
                },
                { ".sgml", "text/sgml" },
                { ".sh", "application/x-sh" },
                {
                    ".shar",
                    "application/x-shar"
                },
                { ".shtml", "text/html" },
                {
                    ".sit",
                    "application/x-stuffit"
                },
                {
                    ".sitemap",
                    "application/xml"
                },
                { ".skin", "application/xml" },
                {
                    ".sldm",
                    "application/vnd.ms-powerpoint.slide.macroEnabled.12"
                },
                {
                    ".sldx",
                    "application/vnd.openxmlformats-officedocument.presentationml.slide"
                },
                {
                    ".slk",
                    "application/vnd.ms-excel"
                },
                { ".sln", "text/plain" },
                {
                    ".slupkg-ms",
                    "application/x-ms-license"
                },
                { ".smd", "audio/x-smd" },
                {
                    ".smi",
                    "application/octet-stream"
                },
                { ".smx", "audio/x-smd" },
                { ".smz", "audio/x-smd" },
                { ".snd", "audio/basic" },
                {
                    ".snippet",
                    "application/xml"
                },
                {
                    ".snp",
                    "application/octet-stream"
                },
                { ".sol", "text/plain" },
                { ".sor", "text/plain" },
                {
                    ".spc",
                    "application/x-pkcs7-certificates"
                },
                {
                    ".spl",
                    "application/futuresplash"
                },
                {
                    ".src",
                    "application/x-wais-source"
                },
                { ".srf", "text/plain" },
                {
                    ".SSISDeploymentManifest",
                    "text/xml"
                },
                {
                    ".ssm",
                    "application/streamingmedia"
                },
                {
                    ".sst",
                    "application/vnd.ms-pki.certstore"
                },
                {
                    ".stl",
                    "application/vnd.ms-pki.stl"
                },
                {
                    ".sv4cpio",
                    "application/x-sv4cpio"
                },
                {
                    ".sv4crc",
                    "application/x-sv4crc"
                },
                { ".svc", "application/xml" },
                { ".svg", "image/svg+xml" },
                {
                    ".swf",
                    "application/x-shockwave-flash"
                },
                {
                    ".t", "application/x-troff"
                },
                {
                    ".tar", "application/x-tar"
                },
                {
                    ".tcl", "application/x-tcl"
                },
                {
                    ".testrunconfig",
                    "application/xml"
                },
                {
                    ".testsettings",
                    "application/xml"
                },
                {
                    ".tex", "application/x-tex"
                },
                {
                    ".texi",
                    "application/x-texinfo"
                },
                {
                    ".texinfo",
                    "application/x-texinfo"
                },
                {
                    ".tgz",
                    "application/x-compressed"
                },
                {
                    ".thmx",
                    "application/vnd.ms-officetheme"
                },
                {
                    ".thn",
                    "application/octet-stream"
                },
                { ".tif", "image/tiff" },
                { ".tiff", "image/tiff" },
                { ".tlh", "text/plain" },
                { ".tli", "text/plain" },
                {
                    ".toc",
                    "application/octet-stream"
                },
                {
                    ".tr", "application/x-troff"
                },
                {
                    ".trm",
                    "application/x-msterminal"
                },
                { ".trx", "application/xml" },
                {
                    ".ts",
                    "video/vnd.dlna.mpeg-tts"
                },
                {
                    ".tsv",
                    "text/tab-separated-values"
                },
                {
                    ".ttf",
                    "application/octet-stream"
                },
                {
                    ".tts",
                    "video/vnd.dlna.mpeg-tts"
                },
                { ".txt", "text/plain" },
                {
                    ".u32",
                    "application/octet-stream"
                },
                { ".uls", "text/iuls" },
                { ".user", "text/plain" },
                {
                    ".ustar",
                    "application/x-ustar"
                },
                { ".vb", "text/plain" },
                { ".vbdproj", "text/plain" },
                { ".vbk", "video/mpeg" },
                { ".vbproj", "text/plain" },
                { ".vbs", "text/vbscript" },
                { ".vcf", "text/x-vcard" },
                {
                    ".vcproj", "Application/xml"
                },
                { ".vcs", "text/plain" },
                {
                    ".vcxproj",
                    "Application/xml"
                },
                { ".vddproj", "text/plain" },
                { ".vdp", "text/plain" },
                { ".vdproj", "text/plain" },
                {
                    ".vdx",
                    "application/vnd.ms-visio.viewer"
                },
                { ".vml", "text/xml" },
                {
                    ".vscontent",
                    "application/xml"
                },
                { ".vsct", "text/xml" },
                {
                    ".vsd",
                    "application/vnd.visio"
                },
                {
                    ".vsi", "application/ms-vsi"
                },
                {
                    ".vsix", "application/vsix"
                },
                {
                    ".vsixlangpack", "text/xml"
                },
                {
                    ".vsixmanifest", "text/xml"
                },
                {
                    ".vsmdi", "application/xml"
                },
                { ".vspscc", "text/plain" },
                {
                    ".vss",
                    "application/vnd.visio"
                },
                { ".vsscc", "text/plain" },
                { ".vssettings", "text/xml" },
                { ".vssscc", "text/plain" },
                {
                    ".vst",
                    "application/vnd.visio"
                },
                { ".vstemplate", "text/xml" },
                {
                    ".vsto",
                    "application/x-ms-vsto"
                },
                {
                    ".vsw",
                    "application/vnd.visio"
                },
                {
                    ".vsx",
                    "application/vnd.visio"
                },
                {
                    ".vtx",
                    "application/vnd.visio"
                },
                { ".wav", "audio/wav" },
                { ".wave", "audio/wav" },
                { ".wax", "audio/x-ms-wax" },
                {
                    ".wbk", "application/msword"
                },
                {
                    ".wbmp",
                    "image/vnd.wap.wbmp"
                },
                {
                    ".wcm",
                    "application/vnd.ms-works"
                },
                {
                    ".wdb",
                    "application/vnd.ms-works"
                },
                {
                    ".wdp", "image/vnd.ms-photo"
                },
                {
                    ".webarchive",
                    "application/x-safari-webarchive"
                },
                {
                    ".webtest",
                    "application/xml"
                },
                { ".wiq", "application/xml" },
                {
                    ".wiz", "application/msword"
                },
                {
                    ".wks",
                    "application/vnd.ms-works"
                },
                {
                    ".WLMP",
                    "application/wlmoviemaker"
                },
                {
                    ".wlpginstall",
                    "application/x-wlpg-detect"
                },
                {
                    ".wlpginstall3",
                    "application/x-wlpg3-detect"
                },
                { ".wm", "video/x-ms-wm" },
                { ".wma", "audio/x-ms-wma" },
                {
                    ".wmd",
                    "application/x-ms-wmd"
                },
                {
                    ".wmf",
                    "application/x-msmetafile"
                },
                { ".wml", "text/vnd.wap.wml" },
                {
                    ".wmlc",
                    "application/vnd.wap.wmlc"
                },
                {
                    ".wmls",
                    "text/vnd.wap.wmlscript"
                },
                {
                    ".wmlsc",
                    "application/vnd.wap.wmlscriptc"
                },
                { ".wmp", "video/x-ms-wmp" },
                { ".wmv", "video/x-ms-wmv" },
                { ".wmx", "video/x-ms-wmx" },
                {
                    ".wmz",
                    "application/x-ms-wmz"
                },
                {
                    ".woff",
                    "application/font-woff"
                },
                {
                    ".wpl",
                    "application/vnd.ms-wpl"
                },
                {
                    ".wps",
                    "application/vnd.ms-works"
                },
                {
                    ".wri",
                    "application/x-mswrite"
                },
                { ".wrl", "x-world/x-vrml" },
                { ".wrz", "x-world/x-vrml" },
                { ".wsc", "text/scriptlet" },
                { ".wsdl", "text/xml" },
                { ".wvx", "video/x-ms-wvx" },
                {
                    ".x", "application/directx"
                },
                { ".xaf", "x-world/x-vrml" },
                {
                    ".xaml",
                    "application/xaml+xml"
                },
                {
                    ".xap",
                    "application/x-silverlight-app"
                },
                {
                    ".xbap",
                    "application/x-ms-xbap"
                },
                { ".xbm", "image/x-xbitmap" },
                { ".xdr", "text/plain" },
                {
                    ".xht",
                    "application/xhtml+xml"
                },
                {
                    ".xhtml",
                    "application/xhtml+xml"
                },
                {
                    ".xla",
                    "application/vnd.ms-excel"
                },
                {
                    ".xlam",
                    "application/vnd.ms-excel.addin.macroEnabled.12"
                },
                {
                    ".xlc",
                    "application/vnd.ms-excel"
                },
                {
                    ".xld",
                    "application/vnd.ms-excel"
                },
                {
                    ".xlk",
                    "application/vnd.ms-excel"
                },
                {
                    ".xll",
                    "application/vnd.ms-excel"
                },
                {
                    ".xlm",
                    "application/vnd.ms-excel"
                },
                {
                    ".xls",
                    "application/vnd.ms-excel"
                },
                {
                    ".xlsb",
                    "application/vnd.ms-excel.sheet.binary.macroEnabled.12"
                },
                {
                    ".xlsm",
                    "application/vnd.ms-excel.sheet.macroEnabled.12"
                },
                {
                    ".xlsx",
                    "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"
                },
                {
                    ".xlt",
                    "application/vnd.ms-excel"
                },
                {
                    ".xltm",
                    "application/vnd.ms-excel.template.macroEnabled.12"
                },
                {
                    ".xltx",
                    "application/vnd.openxmlformats-officedocument.spreadsheetml.template"
                },
                {
                    ".xlw",
                    "application/vnd.ms-excel"
                },
                { ".xml", "text/xml" },
                { ".xmta", "application/xml" },
                { ".xof", "x-world/x-vrml" },
                { ".XOML", "text/plain" },
                { ".xpm", "image/x-xpixmap" },
                {
                    ".xps",
                    "application/vnd.ms-xpsdocument"
                },
                { ".xrm-ms", "text/xml" },
                { ".xsc", "application/xml" },
                { ".xsd", "text/xml" },
                { ".xsf", "text/xml" },
                { ".xsl", "text/xml" },
                { ".xslt", "text/xml" },
                {
                    ".xsn",
                    "application/octet-stream"
                },
                { ".xss", "application/xml" },
                {
                    ".xtp",
                    "application/octet-stream"
                },
                {
                    ".xwd",
                    "image/x-xwindowdump"
                },
                {
                    ".z",
                    "application/x-compress"
                },
                {
                    ".zip",
                    "application/x-zip-compressed"
                },
                #endregion
            };
        #endregion

        #region Public Methods and Operators
        public static bool Contains(string extension)
        {
            return ExtensionMappings.ContainsKey(extension);
        }

        public static string GetContentType(string extension)
        {
            return ExtensionMappings[extension];
        }
        #endregion
    }
}